/* SimpleApp.scala */
import org.apache.spark.SparkContext
import org.apache.spark.SparkContext._
import org.apache.spark.SparkConf

object SimpleApp {
        def main(args: Array[String]) {
            val logFile = "file:///usr/local/spark/README.md" // Should be some file on your system
            val conf = new SparkConf()
              .setAppName("Simple Application")
              .setMaster("local[*]") // 使用本地模式，* 表示使用所有可用的核心
            val sc = new SparkContext(conf)
            val logData = sc.textFile(logFile, 2).cache()
            val numAs = logData.filter(line => line.contains("a")).count()
            val numBs = logData.filter(line => line.contains("b")).count()
            println("Lines with a: %s, Lines with b: %s".format(numAs, numBs))
        }
    }